Master Plumbers · Call Now (803) 256-9570
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★ Certified Rinnai ACE Pros

Never Run Out of Hot Water Again

Tankless water heaters installed by Master Plumbers, sized right for your home and your gas supply. The entire installation is turnkey and in-house, including gas lines, venting, and electrical hookups, with the price up front before any work begins.

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Super Service Winner 9 years in a row
10-YR WARRANTY

Call Now to Book Your Visit

Speak directly with our West Columbia team.

Call (803) 256-9570
One call gets a Master Plumber sizing the right tankless system for your home. The exact quote up front, and no work begins until you approve it.
Licensed & Insured · SC Mechanical Contractor #M4241
Master PlumbersEvery technician, every job
Licensed & InsuredSC Mechanical Contractor #M4241
Upfront PricingNo work begins until you approve the exact quote
10-Year WarrantyParts & labor on complete installations
The Technology

How Tankless Works

A wall-mounted tankless water heater installation with copper supply lines and venting Wall-mounted. Vented. No tank anywhere.
1 Tap Turns OnA flow sensor detects water moving the instant you open a hot tap.
2 Burner Fires InstantlyWater passes over a gas heat exchanger, going from cold to hot in seconds.
3 Hot Water Never StopsHeated continuously as it flows, for as long as the tap stays open.
4 Shuts Off CompletelyClose the tap and the unit stops. No gas spent keeping a tank warm.
Repeats
on demand
Why Switch

The Benefits of Going Tankless

The Old Way

Your Old Tank

  • Runs cold after 40 to 50 gallons, then you wait for it to recover
  • Burns gas reheating the same water all day, even while you sleep
  • Takes up a closet or a corner of the garage
  • Lasts 10 to 12 years, and usually announces the end by leaking
  • Dozens of gallons stored above your floors, waiting on a rusted seam
The Upgrade

Going Tankless

  • Endless hot water, heated on demand for as long as you need it
  • Heats only when a tap is open, so your gas bill drops
  • Hangs on the wall, about the size of a carry-on suitcase
  • Lasts 20+ years with an annual flush, roughly double a tank
  • No stored water, so there's no tank to rupture or flood the house
  • Runs on natural gas or propane, so no municipal gas line is required
Call to Book: (803) 256-9570

New installs, tank-to-tankless conversions, repairs, and annual descaling. The entire installation is turnkey and in-house, including gas lines, venting, and 120V electrical hookups. No separate subcontractors, ever. Natural gas and propane systems both installed.

How It Works

Three Steps. Zero Surprises.

Call Our Office

Talk to a real person at our West Columbia office. Describe the problem and we'll get a Master Plumber scheduled fast. Emergencies jump the line.

Get Sized & Priced Up Front

Your Master Plumber checks your fixtures, gas supply (natural gas or propane), and venting, then recommends the right unit and gives you the exact quote. No work begins until you approve it. No surprises, ever.

Installed Right, Left Better

Rinnai equipment installed to code by certified ACE Pros, backed by our 10-Year Parts & Labor Warranty on complete installations. We leave your home better than we found it.

The Cottrell & Co. fleet of service trucks at the West Columbia shop
Super Service Winner 9 years in a row
Why Homeowners Choose Us

Honesty & Integrity On Every Job

  • Master Plumbers, not apprenticesEvery Cottrell technician is a Master Plumber. Nobody is learning the trade on your water heater.
  • Certified Rinnai ACE ProsSystems installed by Rinnai ACE Pros qualify for extended equipment and labor warranties. You get more protection just for choosing us.
  • Unrivaled 10-Year Parts & Labor WarrantyEvery complete installation is covered for 10 years, parts and labor. Just keep up the simple maintenance every 2 years. Nobody in the Midlands matches it.
  • Your home, treated like our ownOur technicians respect your home and property as if it were their own, and clean up before they leave. Thousands of happy customers so far. Every technician is background-checked and drug-screened.
0Years in business
0Super Service Awards in a row
0Year parts & labor warranty
Real Reviews

Thousands of Happy Neighbors

Call to Book: (803) 256-9570
G
★★★★★ Rated highly on Google & Angie’s List

Representative reviews reflecting themes from customer reviews on Google and Angie’s List.

Service Area

Serving the Midlands of South Carolina

One home base in West Columbia, covering Lexington and Richland counties and the communities around Lake Murray.

Check Availability: (803) 256-9570
Columbia West Columbia Lexington Irmo Cayce Chapin Ballentine St. Andrews Arcadia Lakes Forest Acres Springdale Red Bank Gaston + surrounding areas
LAKE MURRAY Broad R. Congaree R. LEXINGTON CO. RICHLAND CO. NEWBERRY FAIRFIELD KERSHAW CALHOUN ORANGEBURG AIKEN Chapin Irmo St. Andrews Columbia Forest Acres Lexington Cayce Gaston West Columbia HQ
Counties we serve Our West Columbia home base

Your Last Cold Shower Is Behind You.

One call gets you a certified Rinnai ACE Pro, a tankless system sized right for your home, and a 10-Year Parts & Labor Warranty. Endless hot water starts this week.

Call to Book: (803) 256-9570
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